19 Havelock Street, Helensburgh

19 Havelock Street in Helensburgh is a single storey and attic villa built in the later 19th century. It features a three-bay gabled design, constructed from squared, stugged, and snecked cream sandstone with ashlar dressings. The building includes a base course, ashlar mullioned windows, chamfered arrises, bracketed overhanging eaves, and decorative bargeboarded gables.

On the south elevation, the entrance is centrally located and includes a doorway with chamfered reveals, two-leaf panelled doors, a plate glass fanlight, and a half-glazed vestibule door. To the right, there is a canted window beneath a half-pitched slate roof, which has brattishing that serves as a window guard for the gabled dormer above, featuring a four-centred arch to the dormer window. The left side has an advanced gable bay with a similarly detailed canted window and brattishing acting as a window guard for a four-centred-arched attic window. In the center, there is a small gabled dormer with a pointed-arch window.

The villa is adorned with plate glass sash and case windows and has a grey slate roof, complemented by a coped sandstone stack with moulded cans.